Investigations on the control of Herpotrichia parasitica (Hartig) E. Rostrup (=Trichosphaeria parasitica Hartig)

Summary

Experiments were carried out in order to find an effective control over the needle parasiteHerpotrichia parasitica which is widely spread in silver fir stands in Bavaria. Four different fungicides were tested in field experiments at different times. A satisfying effect could only be ascertained with the systemic fungicide “Benomyl”, when applied repeatedly in spring. In addition, silvicultural treatments to get the disease under control are described.